Articles with "direct reduction" as a keyword



Modeling of Thermochemical Behavior in an Industrial-Scale Rotary Hearth Furnace for Metallurgical Dust Recycling

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Published in 2017 at "Metallurgical and Materials Transactions B"

DOI: 10.1007/s11663-017-1034-5

Abstract: Metallurgical dusts can be recycled through direct reduction in rotary hearth furnaces (RHFs) via addition into carbon-based composite pellets. While iron in the dust is recycled, several heavy and alkali metal elements harmful for blast… read more here.

Keywords: direct reduction; furnace; model; industrial scale ... See more keywords

TiO2 and Reducing Gas: Intricate Relationships to Direct Reduction of Iron Oxide Pellets

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Published in 2024 at "Metallurgical and Materials Transactions B"

DOI: 10.1007/s11663-024-03168-1

Abstract: In response to the imperative for sustainable iron production with reduced CO2 emissions, this study delves into the intricate role of TiO2 in the direct reduction of iron oxide pellets. The TiO2-dependent reducibility of iron… read more here.

Keywords: oxide pellets; iron; direct reduction; reduction ... See more keywords
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Zero-Waste Recycling Method for Nickel Leaching Residue by Direct Reduction–Magnetic Separation Process and Ceramsite Preparation

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Published in 2019 at "Transactions of the Indian Institute of Metals"

DOI: 10.1007/s12666-019-01582-7

Abstract: In this paper, a novel process for beneficiation of metallic iron from nickel leaching residue and preparation of ceramsite from tailings by direct reduction–magnetic separation process is reported. The optimal conditions for direct reduction process… read more here.

Keywords: direct reduction; process; separation process; magnetic separation ... See more keywords
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Effects of Carbon-Containing Pellet Shapes on Its Direct Reduction Process: A Numerical Study

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Published in 2020 at "Transactions of the Indian Institute of Metals"

DOI: 10.1007/s12666-020-02115-3

Abstract: A mathematical model for the reduction of different shapes of carbon-containing pellet in a rotary hearth furnace was established. The influence of the pellet shape on its direct reduction process was analyzed, and finally, the… read more here.

Keywords: reduction; shape; direct reduction; carbon containing ... See more keywords

Carburization Behavior of High-Grade Pellets After Direct Reduction in Pure Hydrogen

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Published in 2024 at "Journal of Sustainable Metallurgy"

DOI: 10.1007/s40831-024-00906-2

Abstract: Carburization is a critical aspect in the iron and steel industry as it significantly affects the mechanical and chemical properties of the final product. This study provides a comprehensive analysis of the carburization potential of… read more here.

Keywords: direct reduction; carburization; reduction; pure hydrogen ... See more keywords
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Upgrade of nickel and iron from low-grade nickel laterite by improving direct reduction-magnetic separation process

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Published in 2021 at "Journal of Iron and Steel Research International"

DOI: 10.1007/s42243-021-00646-7

Abstract: Low-grade saprolite nickel laterite, characterized by complicated minerals composition and fine-grained and complex dissemination, was commonly treated with a low recovery efficiency of Ni and Fe by conventional methods. Hence, an improved direct reduction and… read more here.

Keywords: nickel; separation process; magnetic separation; direct reduction ... See more keywords

A novel process to upgrade the copper slag by direct reduction-magnetic separation with the addition of Na2CO3 and CaO

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Published in 2019 at "Powder Technology"

DOI: 10.1016/j.powtec.2019.02.046

Abstract: Abstract An innovative technology for direct reduction-magnetic separation with the addition of Na2CO3 and CaO was studied to upgrade copper slag assaying 40.33% Fetotal and 0.65% Cu. It is difficult to recover iron and copper… read more here.

Keywords: copper slag; copper; cao; reduction ... See more keywords

Pathways to Electrochemical Ironmaking at Scale Via the Direct Reduction of Fe2O3

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Published in 2025 at "ACS Energy Letters"

DOI: 10.1021/acsenergylett.5c00166

Abstract: : Electrochemical ironmaking can provide an energy efficient, zero-emissions alternative to traditional methods of ironmaking, but the scalability of low-temperature electrochemical cells may be constrained by reactor throughput and the availability of acceptable feedstocks. Electrodes… read more here.

Keywords: pathways electrochemical; ironmaking scale; electrochemical ironmaking; scale via ... See more keywords

Optimizing electricity consumption in direct reduction iron processes using RSM, MLP, and RBF models

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Published in 2025 at "Scientific Reports"

DOI: 10.1038/s41598-025-18854-6

Abstract: This study addresses the critical challenge of optimizing energy consumption in direct reduction iron (DRI) units, a vital component of the steel industry. By utilizing operational data from a DRI unit, this research identifies and… read more here.

Keywords: consumption direct; consumption; energy; direct reduction ... See more keywords

Direct reduction of multiloop multiscale scattering amplitudes

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Published in 2020 at "Physical Review D"

DOI: 10.1103/physrevd.101.076023

Abstract: We propose an alternative approach based on series representation to directly reduce multi-loop multi-scale scattering amplitude into set of freely chosen master integrals. And this approach avoid complicated calculations of inverse matrix and dimension shift… read more here.

Keywords: multiscale scattering; series representation; direct reduction; multiloop multiscale ... See more keywords
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Detailed Modeling of the Direct Reduction of Iron Ore in a Shaft Furnace

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Published in 2018 at "Materials"

DOI: 10.3390/ma11101865

Abstract: This paper addresses the modeling of the iron ore direct reduction process, a process likely to reduce CO2 emissions from the steel industry. The shaft furnace is divided into three sections (reduction, transition, and cooling),… read more here.

Keywords: reduction; direct reduction; shaft furnace; shaft ... See more keywords